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 ###Instrução: Nomeie o número total de voltas para o ano de 1961.
 ###Tabelas: CREATE TABLE singles:_10_2_titles_8_runners-up (singles:_10_2_titles_8_runners-up_id AUTO_INCREMENT PRIMARY KEY, Outcome VARCHAR, Date VARCHAR, Surface VARCHAR, Opponent VARCHAR, Score VARCHAR) CREATE TABLE new_mexico_places_ranked_by_per_capita_income (new_mexico_places_ranked_by_per_capita_income_id AUTO_INCREMENT PRIMARY KEY, Rank INT, Place VARCHAR, County VARCHAR, Per Capita Income VARCHAR, Median House- hold Income VARCHAR, Median Family Income VARCHAR, Population INT, Number of Households INT) CREATE TABLE third_and_fourth_tiers (third_and_fourth_tiers_id AUTO_INCREMENT PRIMARY KEY, Season VARCHAR, Club VARCHAR, National League VARCHAR, National Cup VARCHAR, European Cup VARCHAR) CREATE TABLE composition_of_the_6th_seanad (composition_of_the_6th_seanad_id AUTO_INCREMENT PRIMARY KEY, Administrative Panel INT, Agricultural Panel INT, Cultural and Educational Panel INT, Industrial and Commercial Panel INT, Labour Panel INT, National University of Ireland INT, University of Dublin INT, Nominated by the Taoiseach INT, Total INT) CREATE TABLE indy_500_results (indy_500_results_id AUTO_INCREMENT PRIMARY KEY, Year VARCHAR, Start VARCHAR, Qual VARCHAR, Rank VARCHAR, Finish VARCHAR, Laps INT)  
SELECT COUNT Laps FROM indy_500_results WHERE Year = 1961